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3. He developed a score that alows individuals to subjectively rate their level of exertion during exercise 4. I begins at the threshold of training and stops at the point where the physical activity becomes counterproductive​

Sagot :

Answer:

3. He developed a score that alows individuals to subjectively rate their level of exertion during exercise

ANSWER : Gunnar Borg

4. I begins at the threshold of training and stops at the point where the physical activity becomes counterproductive​

ANSWER : Target Zone